======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '374'
                                          'artist'  'Dick Hyman & Niels-Henning Ørsted Pedersen'
                                     'text_people'  ''
                                         'release'  'radio jazz 13'
                                           'title'  'you must believe in spring'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-2', "
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 "'Q-CHART-2', 'q-drums-1', 'q-other-1', 'q-piano-4', 'q-vocals-1', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['jazz', '90s', 'bass', 'jazz piano']"
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                            'musicbrainz_artistid'  ''
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                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '106.0'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

======================== rawer (from filesystem) ========================

'TALB' (Album/Movie/Show title)                     'radio jazz 13'
'TBPM' (BPM (beats per minute))                     '106.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TIT2' (Title/songname/content description)         'you must believe in spring'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Dick Hyman & Niels-Henning Ørsted Pedersen'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', '90s', 'bass', 'jazz piano']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.63 dB'
'TXXX:replaygain_track_peak'                        '0.926577'

========================== row from database ==========================
                                              'id'  1482119
                                            'path'  /data/Music/Bulk/00poprockelectronic/radio jazz 13/Dick Hyman & Niels-Henning - you must believe in spring.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  374
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  6000793
                                           'mtime'  1620574512
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic prerock jb unsorted
                                      'tag_artist'  Dick Hyman & Niels-Henning Ørsted Pedersen
                                     'tag_release'  radio jazz 13
                                       'tag_title'  you must believe in spring
                                             'bpm'  106.0
                                    'search_title'  'believe':3 'in':4 'must':2 'spring':5 'you':1
                                   'search_artist'  'dick':1 'henning':4 'hyman':2 'niels':3 'nielshenning':5 'orsted':7 'pedersen':8 'ørsted':6
                                  'search_release'  'jazz':2 'radio':1
                                     'search_rest'  '00poprockelectronic':1 'jb':3 'prerock':2 'unsorted':4
                                    'search_combo'  '00poprockelectronic':16 'believe':3A 'dick':6B 'henning':9B 'hyman':7B 'in':4A 'jazz':15C 'jb':18 'must':2A 'niels':8B 'nielshenning':10B 'orsted':12B 'pedersen':13B 'prerock':17 'radio':14C 'spring':5A 'unsorted':19 'you':1A 'ørsted':11B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-4', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-CHART-2', 'q-drums-1', 'Q-SYN-1', 'q-other-1', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4']
                                      'lastfmtags'  ['jazz', '90s', 'bass', 'jazz piano']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620574512.1719341  (2021-05-09 17:35:12)
                             'size'  6000793